Key blank



FIG. 1 is a front elevational view of a key blank showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right end elevational view thereof;

FIG. 6 is a left end elevational view thereof;

FIG. 7 is a front elevational view of a second embodiment thereof, the only difference residing in the configuration of the apertures in the handle portion; and

FIG. 8 is a rear elevational view thereof.

The characteristic feature of my design resides in the appearance of the bow. 

The ornamental design for a key blank, as shown and described. 